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HomerandClaude Opus 5.5 28ff205ed0 Custom connections are gone: the CLI talks to the LLeMbas server it is logged in to
LLeMbas CLI 2.0 is LLeMbas-server-specific (CLI rule 2). Removed: the
anthropic, gemini, ollama and responses clients, context discovery and
llama-swap unloading (discover.ts), the Connection schema with its dialect,
auth, key_cmd, discover, unload_url and one_model_at_a_time, the model
`fallback` (it only ever moved to another server), effort_map and cache, and
the multi-connection refs. Kept: openai-chat, http, sse, think, effort,
tokens and all of src/lembas.

- connections.yaml holds the login (`type: webui`, as lembas login writes
  it). A custom entry from 1.x is read past with a warning that says how to
  log in, so an old file still starts; with several logins left, the latest
  is used and the others named.
- A model's ref is the id the server serves it under; the older forms
  (`<login>/<id>`, `<login>/<model>`) still resolve and config.yaml is
  rewritten once. Without a login there is no model, and the error (and the
  first-run screen, now the sign-in alone) says `lembas login <address>`.
- A login to another server signs this machine out of the previous one.
- The window is the server's word (no discovery); a capacity group comes
  from the server's `capacity.group` alone; embeddings use the server's
  /v1/embeddings.
- `lembas models` lists the server's models; install.sh's starter files, the
  README and the JSON schemas say the same.

Tests: every fixture is a login now (the fake server lists models, answers
other GETs with 404, and can hand one model to another script, as a server
with several backends); the dialect suites and the cross-connection tests are
gone with their code.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-27 21:00:05 +00:00

67 lines
4.0 KiB
TypeScript

// A scripted OpenAI-compatible server. Each request takes the next scripted response.
export type Scripted =
| { status: number; body: string }
| { chunks: unknown[]; done?: boolean; raw?: string; gapMs?: number }
export interface Fake {
url: string
requests: any[]
/** Path (with query) and headers of each request, in order. */
calls: { path: string; headers: Record<string, string> }[]
stop(): void
}
/** `route`: another fake that answers for a model (by the id in the request), as one LLeMbas server
* serves models from several backends — the request is passed to it whole, and recorded there. */
/** `served`: what GET /v1/models lists, as a LLeMbas server lists its models (default two
* placeholders). Any other GET — the instance's own description, its personalization — is a 404,
* which a client reads as "this server does not have it". */
export function fakeProvider(script: Scripted[], opts: { route?: (model: string) => Fake | undefined; served?: Record<string, unknown>[] } = {}): Fake {
const requests: any[] = []
const calls: { path: string; headers: Record<string, string> }[] = []
let i = 0
const server = Bun.serve({
port: 0,
async fetch(req) {
const url = new URL(req.url)
if (req.method !== "POST" || url.pathname.endsWith("/unload")) calls.push({ path: url.pathname + url.search, headers: Object.fromEntries(req.headers.entries()) })
if (url.pathname.endsWith("/models")) return Response.json({ data: opts.served ?? [{ id: "m1", meta: { n_ctx: 32768 } }, { id: "m2", max_model_len: 8192 }] })
if (url.pathname.endsWith("/props")) return url.pathname.includes("/upstream/swapped/") ? Response.json({ default_generation_settings: { n_ctx: 16384 } }) : new Response("no", { status: 404 })
if (url.pathname.endsWith("/unload")) return new Response("ok")
if (req.method === "GET") return new Response("not found", { status: 404 })
const body = (await req.json()) as any
const to = typeof body?.model === "string" ? opts.route?.(body.model) : undefined
if (to) return fetch(to.url.replace(/\/v1$/, "") + url.pathname + url.search, { method: "POST", headers: req.headers, body: JSON.stringify(body) })
requests.push(body)
calls.push({ path: url.pathname + url.search, headers: Object.fromEntries(req.headers.entries()) })
const r = script[i++]
if (!r) return new Response("script exhausted", { status: 500 })
if ("status" in r) return new Response(r.body, { status: r.status })
// gapMs: a pause between chunks, to look at the screen mid-stream.
if (r.gapMs && !r.raw) {
const gap = r.gapMs
const parts = [...r.chunks.map((c) => `data: ${JSON.stringify(c)}\n\n`), ...(r.done === false ? [] : ["data: [DONE]\n\n"])]
const stream = new ReadableStream({
async start(ctl) {
for (const [n, part] of parts.entries()) {
if (n) await Bun.sleep(gap)
ctl.enqueue(new TextEncoder().encode(part))
}
ctl.close()
},
})
return new Response(stream, { headers: { "content-type": "text/event-stream" } })
}
const text = r.raw ?? r.chunks.map((c) => `data: ${JSON.stringify(c)}\n\n`).join("") + (r.done === false ? "" : "data: [DONE]\n\n")
return new Response(text, { headers: { "content-type": "text/event-stream" } })
},
})
return { url: `http://127.0.0.1:${server.port}/v1`, requests, calls, stop: () => server.stop(true) }
}
/** Chunk helpers in the OpenAI shape. */
export const delta = (d: Record<string, unknown>, finish: string | null = null) => ({ choices: [{ index: 0, delta: d, finish_reason: finish }] })
export const usage = (p: number, c: number) => ({ choices: [], usage: { prompt_tokens: p, completion_tokens: c } })
export const toolCall = (index: number | undefined, id: string | undefined, name: string | undefined, args: unknown) =>
delta({ tool_calls: [{ ...(index === undefined ? {} : { index }), ...(id ? { id } : {}), function: { ...(name ? { name } : {}), arguments: args } }] })